KR20130055742A - Wind generator emergency power transmission apparatus - Google Patents

Wind generator emergency power transmission apparatus Download PDF

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Publication number
KR20130055742A
KR20130055742A KR1020110121330A KR20110121330A KR20130055742A KR 20130055742 A KR20130055742 A KR 20130055742A KR 1020110121330 A KR1020110121330 A KR 1020110121330A KR 20110121330 A KR20110121330 A KR 20110121330A KR 20130055742 A KR20130055742 A KR 20130055742A
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KR
South Korea
Prior art keywords
transmission cable
rotary joint
power transmission
power
switch
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KR1020110121330A
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Korean (ko)
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소철호
김영기
변재희
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엘에스전선 주식회사
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Priority to KR1020110121330A priority Critical patent/KR20130055742A/en
Publication of KR20130055742A publication Critical patent/KR20130055742A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0264—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/028—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power
    • F03D7/0284—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power in relation to the state of the electric grid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/50—Maintenance or repair
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

PURPOSE: An emergency power transmission device of an aerogenerator is provided to stably transmit power through a detour path when power transmission is difficult because a power transmission cable is twisted with a nacelle rotated by wind power. CONSTITUTION: An emergency power transmission device comprises a switch(143), a first rotary joint(145), a second rotary joint(149), a first measurement system(141), and a second measurement system(147). The switch is mounted on power transmission cables(130a,130d) extended from a nacelle(110) to the inside of a tower. The first rotary joint is mounted on the rear of the switch along the power transmission cables. The second rotary joint is mounted on the rear of the first rotary joint along the power transmission cables. The first measurement system is mounted on the front of the first rotary joint. The second measurement system is mounted on between the first rotary joint and the second rotary joint and measures power.

Description

풍력발전기의 비상 전력송전장치{Wind generator emergency power transmission apparatus}Wind generator emergency power transmission apparatus

본 발명은 풍력발전기의 전력송전장치에 관한 것으로서, 특히 풍력발전기에서 송전의 문제가 발생하였을 때에 우회 송전하여 원활한 송전이 가능하며 또한 송전케이블의 꼬임을 방지할 수 있게 구성한 것이다.
The present invention relates to a power transmission device of a wind power generator, and in particular, when a power transmission problem occurs in a wind power generator, it is configured to be able to transmit smoothly by preventing power transmission and to prevent twisting of a transmission cable.

풍력발전기는 지반에 수직하게 고정된 타워와, 타워의 상단에서 회전하는 너셀을 포함하며, 너셀의 내부에는 발전기가 내장된다. 따라서 너셀의 전방에 장착된 블레이드가 풍력에 의해 회전하면서 발전기에서 전력을 발생한다.The wind turbine includes a tower fixed vertically to the ground, and a nussel that rotates at the top of the tower, and a generator is built in the nussel. Therefore, the blade mounted in front of the nussel is rotated by the wind to generate power from the generator.

한편, 너셀은 타워의 상단에 회전 가능하게 장착되어 풍향에 의해 회전한다. 이와 같이 구성된 풍력발전기는 타워의 상단에서 너셀이 회전하기 때문에 너셀에서 타워 내부로 연장된 송전케이블이 꼬이게 된다.On the other hand, the nussel is rotatably mounted on the top of the tower to rotate by the wind direction. Wind turbines constructed in this way are twisted transmission cables extending from the inner shell to the tower because the nussel is rotated at the top of the tower.

도면에서 도 1은 아래 선행기술문헌에 공지된 풍력발전기의 내부 구조를 나타낸 개념도이다.1 is a conceptual diagram showing the internal structure of the wind power generator known in the prior art document below.

도 1에 도시된 바와 같이, 너셀(1)에는 풍력을 전기에너지로 전환하는 발전기(10)와, 발전기(10)에서 생산된 전기를 공급 전류 형태로 변환하는 전력변환기(11)가 내장되며, 타워(3)의 내부 상단에는 회전형 변압기(20)가 설치된다.As shown in FIG. 1, the nussel 1 includes a generator 10 for converting wind power into electrical energy and a power converter 11 for converting electricity produced by the generator 10 into a supply current form. A rotary transformer 20 is installed at the upper end of the tower 3.

회전형 변압기(20)는 회전자(21)와 고정자(22)를 구비하며, 회전자(21)에 전력변환기(11)에서 연장된 송전케이블(23a)이 접속되고, 고정자(22)에서 연장된 송전케이블(23b)은 타워(3)의 하단을 통해 외부로 연장된다.The rotary transformer 20 includes a rotor 21 and a stator 22, and a power transmission cable 23a extending from the power converter 11 is connected to the rotor 21, and extends from the stator 22. The transmission cable 23b is extended to the outside through the bottom of the tower (3).

이와 같이 구성된 종래 풍력발전기에 있어서, 변압기(20)가 타워(3)의 상단에 위치함에 따라 타워(3)의 하중이 증가하게 되고, 변압기(20)의 자체 진동 및 열이 너셀(1) 내부 설비 즉 샤프트, 기어박스, 발전기, 전력변환기 등에 열적 스트레스를 가하게 되어 오동작이 발생하게 된다.In the conventional wind turbine configured as described above, as the transformer 20 is located at the top of the tower 3, the load of the tower 3 is increased, and the self-vibration and heat of the transformer 20 are inside the nussel 1. Thermal stress is applied to equipment, ie shafts, gearboxes, generators, and power converters, resulting in malfunctions.

또한, 변압기(20)의 크기 및 설치 위치에 따른 유지보수가 어렵고, 회전자(21) 및 고정자(22)의 고장, 오동작이 발생할 경우 전원 공급이 차단되는 문제점이 있다.In addition, there is a problem in that maintenance is difficult according to the size and installation position of the transformer 20, and the power supply is cut off when a failure or malfunction of the rotor 21 and the stator 22 occurs.

여기에서 변압기를 타워 하단에 설치할 경우, 전력 변환기에서 변압기까지 연장된 송전케이블의 길이가 길어 송전케이블이 꼬임에 따른 응력이 축적되는 단점이 있다.
Here, when the transformer is installed at the bottom of the tower, the length of the transmission cable extending from the power converter to the transformer is long, there is a disadvantage that the stress is accumulated due to the twisted transmission cable.

대한민국 공개특허공보 제10-2011-0052905(2011.05.19)Republic of Korea Patent Publication No. 10-2011-0052905 (2011.05.19)

본 발명은 앞에서 설명한 바와 같은 종래 기술의 문제점을 해결하기 위하여 발명된 것으로서, 너셀이 풍향에 의해 회전하여 송전케이블이 꼬여 송전이 어려워지는 비상 사태가 발생하더라도 우회경로를 통해 안정적으로 송전 가능하게 구성한 풍력발전기의 비상 전력송전장치를 제공하는 데 그 목적이 있다.The present invention has been invented to solve the problems of the prior art as described above, even if the nucleus is rotated by the wind direction, the transmission cable is twisted, even if an emergency situation is difficult to transmit power wind power configured to be stably transmitted through the bypass path The purpose is to provide an emergency power transmission device of the generator.

또한, 본 발명은 변압기에서 발생하는 열에 의해 주변 기기의 열적 오작동을 방지할 수 있으며 타워의 하중을 감량시킬 수 있게 구성한 풍력발전기의 비상 전력송전장치를 제공하는 데 그 목적이 있다.
In addition, an object of the present invention is to provide an emergency power transmission apparatus of a wind power generator configured to prevent thermal malfunction of peripheral devices by heat generated from a transformer and to reduce a load of a tower.

상기와 같은 목적을 달성하기 위한 본 발명은 너셀을 지지하는 타워의 내부로 연장된 송전케이블에 설치되어 송전케이블의 꼬임을 방지하며 전력을 우회하여 송전할 수 있는 풍력발전기의 비상 전력송전장치로서, 너셀에서 타워 내부로 연장된 송전케이블에 장착되며 우회 송전케이블이 연결되어 전력을 송전케이블 또는 우회 송전케이블로 선택하여 송전하는 것을 제어하기 위한 스위치와, 송전케이블을 따라 스위치의 후방에 장착된 제1회전조인트와, 송전케이블을 따라 제1회전조인트의 후방에 장착된 제2회전조인트와, 제1회전조인트의 전방에 장착되어 전력을 측정하는 제1측정계와, 제1회전조인트와 제2회전조인트 사이에 장착되어 전력을 측정하는 제2측정계를 포함하며, 상기 우회 송전케이블은 스위치와 제2회전조인트 전방의 송전케이블을 연결하는 것을 기술적 특징으로 한다.The present invention for achieving the above object is an emergency power transmission apparatus of a wind power generator which is installed in the transmission cable extending into the interior of the tower supporting the nussel can prevent the twisting of the transmission cable and transmit the power by bypassing the power, A switch mounted on a transmission cable extending from the nussel to the inside of the tower and connected to a bypass transmission cable to control power transmission by selecting a power transmission cable or a bypass transmission cable, and a first rear mounted switch along the transmission cable. A rotary joint, a second rotary joint mounted to the rear of the first rotary joint along the transmission cable, a first measuring system mounted to the front of the first rotary joint to measure electric power, a first rotary joint and a second rotary joint And a second measuring system mounted therebetween to measure electric power, wherein the bypass transmission cable connects the transmission cable in front of the switch and the second rotary joint. Gyeolhaneun is that the technical feature.

또한, 본 발명의 바람직한 실시예에 따르면, 너셀을 지지하는 타워의 내부로 연장된 송전케이블에 설치되어 송전케이블의 꼬임을 방지하며 전력을 우회하여 송전한다.In addition, according to a preferred embodiment of the present invention, it is installed in the transmission cable extending into the interior of the tower supporting the nussel prevents the twisting of the transmission cable and transmits power bypassing the power.

또한, 본 발명의 바람직한 실시예에 따르면, 상기 송전케이블에는 제1측정계, 스위치, 제1회전조인트, 제2측정계, 제2회전조인트의 순으로 장착되며, 우회 송전케이블의 일단은 스위치에 연결되고 우회 송전케이블의 타단은 제2측정계와 제2회전조인트 사이의 송전케이블에 연결된다.In addition, according to a preferred embodiment of the present invention, the power transmission cable is mounted in the order of the first measuring system, the switch, the first rotation joint, the second measurement system, the second rotation joint, one end of the bypass power transmission cable is connected to the switch The other end of the bypass transmission cable is connected to the transmission cable between the second measuring system and the second rotary joint.

또한, 본 발명의 바람직한 실시예에 따르면, 타워의 하단에는 변압기가 장착되며, 전력은 제2회전조인트를 통해 변압기로 송전된다.In addition, according to a preferred embodiment of the present invention, a transformer is mounted at the bottom of the tower, and power is transmitted to the transformer through the second rotary joint.

또한, 본 발명은 너셀을 지지하는 타워의 내부로 연장된 송전케이블에 설치되어 송전케이블의 꼬임을 방지하며 전력을 우회하여 송전할 수 있는 풍력발전기의 비상 전력송전장치로서, 너셀에서 타워 내부로 연장된 송전케이블, 상기 송전케이블에 장착되어 전력의 전송 선로를 제어할 수 있는 스위치, 상기 송전케이블을 따라 스위치의 후방에 장착된 제1회전조인트, 상기 송전케이블을 따라 제1회전조인트의 후방에 장착된 제2회전조인트, 제1회전조인트와 제2회전조인트 사이에 스위치로부터 연결되는 우회 송전케이블을 포함하는 것을 기술적 특징으로 한다.In addition, the present invention is installed in the transmission cable extending into the interior of the tower supporting the nussel as an emergency power transmission device of a wind power generator that can transmit the power by bypassing the twist of the power transmission cable, extending from the inner shell to the tower Power transmission cable, a switch mounted on the power transmission cable to control a power transmission line, a first rotary joint mounted to the rear of the switch along the power transmission cable, and mounted to the rear of the first rotary joint along the power transmission cable It characterized in that it comprises a bypass transmission cable connected from the switch between the second rotary joint, the first rotary joint and the second rotary joint.

또한, 본 발명의 바람직한 실시예에 따르면, 상기 스위치 전방에 장착되는 제1측정계, 제1회전조인트와 제2회전조인트 사이에 장착되는 제2측정계를 포함한다.In addition, according to a preferred embodiment of the present invention, it includes a first measuring system mounted in front of the switch, a second measuring system mounted between the first rotary joint and the second rotary joint.

또한, 본 발명의 바람직한 실시예에 따르면, 풍력타워 하단에 위치하여 상기 제2회전조인트와 연결되는 변압기를 포함한다.
In addition, according to a preferred embodiment of the present invention, it is located at the bottom of the wind tower includes a transformer connected to the second rotary joint.

앞서 설명한 바와 같이, 본 발명에 따른 풍력발전기의 비상 전력송전장치는 정상적인 상태에서는 제1회전조인트를 통해 출력된 전원을 변압기로 송전하고, 제1회전조인트에 이상이 발생하여 원활한 송전이 어려울 때에는 제2회전조인트를 통해 변압기로 송전할 수 있도록 구성된다. 따라서 본 발명에 따른 풍력발전기의 비상 전력송전장치는 다운타임(downtime) 없이 원활한 송전이 가능하며, 원활한 송전이 진행되는 상태에서 오류가 발생한 제1회전조인트를 정비할 수 있어 정비 및 보수 시간을 충분히 확보할 수 있다는 장점이 있다.As described above, the emergency power transmission apparatus of the wind power generator according to the present invention transmits the power output through the first rotary joint to the transformer in a normal state, when the first rotary joint is abnormal and smooth transmission is difficult. It is configured to transmit power to the transformer through the two-turn joint. Therefore, the emergency power transmission apparatus of the wind power generator according to the present invention is capable of smooth power transmission without downtime, and can maintain the first rotation joint in which the error occurs while the smooth power transmission is in progress. The advantage is that it can be secured.

또한, 본 발명에 따른 풍력발전기의 비상 전력송전장치는 변압기를 타워의 하단에 위치함으로써, 타워에 가해지는 하중을 줄일 수 있고, 또한 변압기와 주변 기기들이 상당한 거리만큼 떨어져 변압기의 열이 주변 기기에서 전달되지 않는다.In addition, the emergency power transmission device of the wind turbine according to the present invention can reduce the load on the tower by placing the transformer at the bottom of the tower, and also the transformer and the peripherals are separated by a considerable distance, the heat of the transformer in the peripherals Not delivered.

또한, 변압기가 타워의 하단에 위치함에 따라 전력 변환기에서 변압기까지를 연결하는 송전케이블의 길이가 길어지는데, 이로 인해 송전케이블의 꼬임에 따른 응력이 축적될 수 있으나, 송전케이블의 중간에 제1회전조인트 및 제2회전조인트가 장착되어 꼬임이 발생하지 않는다는 장점이 있다.
In addition, as the transformer is located at the bottom of the tower, the length of the transmission cable connecting the power converter to the transformer increases, which may cause stress due to the twisting of the transmission cable, but the first rotation in the middle of the transmission cable. The joint and the second rotary joint is mounted there is an advantage that no twist occurs.

도 1은 선행기술문헌에 공개된 종래 기술에 따른 풍력발전기의 꼬임방지장치를 나타낸 개념도이다.
도 2는 본 발명에 따른 풍력발전기의 비상 전력송전장치를 나타낸 개념도이고,
도 3은 도 2에 도시된 비상 전력송전장치를 설명한 상세도이며,
도 4는 본 발명에 따른 풍력발전기의 비상 전력송전장치의 송전관계를 나타낸 개념도이다.1 is a conceptual diagram showing a twist prevention device of a wind power generator according to the prior art disclosed in the prior art document.
2 is a conceptual diagram showing an emergency power transmission apparatus of the wind power generator according to the present invention,
3 is a detailed view illustrating the emergency power transmission device shown in FIG.
4 is a conceptual diagram showing a power transmission relationship of the emergency power transmission apparatus of the wind power generator according to the present invention.

아래에서는 본 발명에 따른 풍력발전기의 비상 전력송전장치의 양호한 실시예를 첨부한 도면을 참조로 하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the emergency power transmission device of the wind turbine according to the present invention will be described in detail.

도면에서, 도 2는 본 발명에 따른 풍력발전기의 비상 전력송전장치를 나타낸 개념도이고, 도 3은 도 2에 도시된 비상 전력송전장치를 설명한 상세도이며, 도 4는 본 발명에 따른 풍력발전기의 비상 전력송전장치의 송전관계를 나타낸 개념도이다.2 is a conceptual view showing an emergency power transmission apparatus of the wind power generator according to the present invention, Figure 3 is a detailed view illustrating the emergency power transmission apparatus shown in Figure 2, Figure 4 is a view of the wind power generator according to the present invention It is a conceptual diagram which shows the transmission relationship of the emergency power transmission apparatus.

도 2 및 도 3에 도시된 바와 같이, 풍력발전기(100)는 지반에 세워진 타워(120)와, 타워(120)의 상단에 회전 가능하게 장착된 너셀(110)을 포함하며, 너셀(110)에는 허브(111) 및 블레이드(112)가 장착된다.As shown in FIG. 2 and FIG. 3, the wind power generator 100 includes a tower 120 standing on the ground and a nussel 110 rotatably mounted on the top of the tower 120, and the nussel 110. The hub 111 and the blade 112 is mounted.

또한 너셀(110) 내부에는 허브(111)와 연결된 기어박스(113)와 기어박스(113)에 연결된 발전기(114)가 내장되며, 발전기(114)에서 연장된 송전케이블(130a)은 타워(120)로 연장되어 타워 내부에 장착된 비상 전력송전부(140)에 접속된다. 그리고 비상 전력송전부(140)에서 연장된 송전케이블(130d)은 타워(120)의 하단에 장착된 변압기(160)에 접속되고, 변압기(160)에서 승압된 전원은 풍력발전기(100) 외부로 전송된다.In addition, the inner shell 110, the gear box 113 connected to the hub 111 and the generator 114 connected to the gear box 113 is built, the transmission cable 130a extending from the generator 114 is a tower 120 E) is connected to the emergency power transmission unit 140 mounted inside the tower. And the power transmission cable (130d) extending from the emergency power transmission unit 140 is connected to the transformer 160 mounted on the bottom of the tower 120, the power boosted by the transformer 160 to the outside of the wind generator (100) Is sent.

아래에서는 이와 같이 구성된 풍력발전기에서 비상 전력송전부에 대해 구체적으로 설명한다.Hereinafter, the emergency power transmission unit in the wind generator configured as described above will be described in detail.

발전기(114)에서 연장된 송전케이블(130a)은 스위치(143)에 접속된다. 그리고 스위치(143)에서 연장된 송전케이블(130b)은 제1회전조인트(145)가 접속되며, 제1회전조인트(145)에서 연장된 송전케이블(130c)은 제2회전조인트(149)에 접속된다. 그리고 제2회전조인트(149)에서 연장된 송전케이블(130d)은 타워(120)의 내측면에 고정된 브래킷(121)에 지지된 상태로 타워(120)의 내측면을 따라 타워(120) 하단에 장착된 변압기(160)에 접속된다.The power transmission cable 130a extending from the generator 114 is connected to the switch 143. In addition, a first rotation joint 145 is connected to the power transmission cable 130b extending from the switch 143, and a transmission cable 130c extending from the first rotation joint 145 is connected to the second rotation joint 149. do. In addition, the transmission cable 130d extending from the second rotary joint 149 is supported by the bracket 121 fixed to the inner side of the tower 120, and the lower side of the tower 120 along the inner side of the tower 120. It is connected to a transformer 160 mounted on it.

그리고 스위치(143)의 전방에는 전압 또는 전류를 측정하는 제1측정계(141)가 장착되고, 제2회전조인트(149)의 전방에는 제2측정계(147)가 장착된다.In front of the switch 143, a first measuring system 141 measuring voltage or current is mounted, and a second measuring system 147 is mounted in front of the second rotary joint 149.

또한 스위치(143)에는 우회 송전케이블(151)이 연장되며 우회 송전케이블(151)은 제2측정계(147)와 제2회전조인트(149) 사이의 송전케이블(130c)에 합류된다.In addition, the bypass transmission cable 151 is extended to the switch 143 and the bypass transmission cable 151 is joined to the transmission cable 130c between the second measurement system 147 and the second rotary joint 149.

이와 같이 구성된 풍력발전기(100)에서 회전조인트(145, 149)는 로터리 조인트 또는 슬립 링 등과 같이 일측이 타측에 대해 상대 회전하는 부재들로서, 일측에 접속된 송전케이블과 타측에 접속된 송전케이블을 통전시킨 상태로 회전 운동이 가능하다. In the wind turbine generator 100 configured as described above, the rotary joints 145 and 149 are members of which one side rotates relative to the other side, such as a rotary joint or a slip ring, and energize a power transmission cable connected to one side and a power transmission cable connected to the other side. Rotating movement is possible in the state.

또한 스위치(143)는 제1측정계(141)와 제2측정계(147)에서 전원 측정치를 전송받고, 그 값에 따라 제1회전조인트(145)에 접속된 송전케이블(130b) 또는 우회 송전케이블(151)로 선택하여 송전한다.In addition, the switch 143 receives the power measurement values from the first measurement system 141 and the second measurement system 147, and according to the value, the transmission cable 130b or the bypass transmission cable (connected to the first rotary joint 145). 151) to transmit.

한편, 제1측정계(141)와 제2측정계(147)는 송전케이블(130a, 130c)을 통해 송전되는 전원을 각각 측정하고, 측정된 값을 스위치(143)에 무선 또는 유선으로 송신한다. 여기에서, 제1측정계(141)와 제2측정계(147)의 측정치의 차가 오차 범위 이상을 벗어나면 제1측정계(141)와 제2측정계(147)의 사이에 있는 제1회전조인트(145)에 전기적인 오류가 발생한 것으로서, 스위치(143)에서는 제1측정계(141)에서 측정된 측정치와 제2측정계(147)에서 측정된 측정치를 비교하여 송전선로를 선택한다.On the other hand, the first measurement system 141 and the second measurement system 147 measures the power transmitted through the power transmission cable (130a, 130c), respectively, and transmits the measured value to the switch 143 by wireless or wired. Here, when the difference between the measured values of the first measuring system 141 and the second measuring system 147 is outside the error range or more, the first rotary joint 145 between the first measuring system 141 and the second measuring system 147. As an electrical error has occurred, the switch 143 selects a transmission line by comparing the measured value measured by the first measuring system 141 with the measured value measured by the second measuring system 147.

이와 같이 구성된 비상 전력송전부의 송전관계에 대해 설명한다.The transmission relationship of the emergency power transmission part comprised in this way is demonstrated.

도 4의 (a) 및 (b)에 도시된 바와 같이, 발전기(114)에서 제1회전조인트(145)에 연결된 송전케이블(130a)은 너셀(110)의 회전에 의해 꼬이지만, 제1회전조인트(145)에 의해 꼬임이 풀리게 되고, 제1회전조인트(145)와 제2회전조인트(149)를 통해 변압기(160)로 원활하게 송전된다.As shown in (a) and (b) of Figure 4, the power transmission cable 130a connected to the first rotary joint 145 in the generator 114 is twisted by the rotation of the nussel 110, but the first rotation The twist is released by the joint 145 and is smoothly transmitted to the transformer 160 through the first rotary joint 145 and the second rotary joint 149.

한편, 송전케이블(130a)의 꼬임 등의 원인으로 제1회전조인트(145)에 문제가 발생하여 제1측정계(141)에서 측정된 측정치와 제2측정계(147)에서 측정된 측정치의 차가 오차 범위를 벗어날 경우, 스위치(143)는 우회 송전케이블(151)로 전원을 송전하도록 전환되고, 스위치(143)에 의해 발전기(114)에서 생산된 전원은 스위치(143), 우회 송전케이블(151), 제2회전조인트(149)를 통해 변압기(160)로 전송된다. 이때 제1회전조인트(145)의 회전이 불량일 경우 송전케이블(130a, 130b, 130c)의 꼬임은 제2회전조인트(149)에 의해 풀리게 된다.
On the other hand, a problem occurs in the first rotary joint 145 due to the twisting of the power transmission cable 130a, and the difference between the measured value measured by the first measuring system 141 and the measured value measured by the second measuring system 147 is an error range. If the switch 143 is switched to transmit power to the bypass power transmission cable 151, the power produced by the generator 114 by the switch 143 is a switch 143, bypass power transmission cable 151, The second rotary joint 149 is transmitted to the transformer 160. At this time, when the rotation of the first rotary joint 145 is poor, the twist of the power transmission cables 130a, 130b, and 130c is released by the second rotary joint 149.

100 : 풍력발전기
110 : 너셀
111 : 허브
112 : 블레이드
113 : 기어박스
114 : 발전기
120 : 타워
121 : 브래킷
130a ~ 130d : 송전케이블
140 : 비상 전력송전부
141, 147 : 측정계
143 : 스위치
145, 149 : 회전조인트
151 : 우회 송전케이블
160 : 변압기100: wind power generator
110: Nussel
111: Hub
112: blade
113: gearbox
114: generator
120: tower
121: Bracket
130a ~ 130d: Power Transmission Cable
140: emergency power transmission unit
141, 147: measuring system
143: switch
145, 149: rotating joint
151: bypass transmission cable
160: transformer

Claims (6)

너셀을 지지하는 타워의 내부로 연장된 송전케이블에 설치되어 송전케이블의 꼬임을 방지하며 전력을 우회하여 송전할 수 있는 풍력발전기의 비상 전력송전장치로서,
너셀에서 타워 내부로 연장된 송전케이블에 장착되며 우회 송전케이블이 연결되어 전력을 송전케이블 또는 우회 송전케이블로 선택하여 송전하는 것을 제어하기 위한 스위치와,
송전케이블을 따라 스위치의 후방에 장착된 제1회전조인트와,
송전케이블을 따라 제1회전조인트의 후방에 장착된 제2회전조인트와,
제1회전조인트의 전방에 장착되어 전력을 측정하는 제1측정계와,
제1회전조인트와 제2회전조인트 사이에 장착되어 전력을 측정하는 제2측정계를 포함하며,
상기 우회 송전케이블은 스위치와 제2회전조인트 전방의 송전케이블을 연결하는 것을 특징으로 하는 풍력발전기의 비상 전력송전장치.
As an emergency power transmission device of a wind power generator that is installed on a transmission cable extending into a tower supporting a nussel and prevents twisting of the transmission cable and transmits power by bypassing power,
It is mounted on the transmission cable extending from the nussel to the inside of the tower, the switch for controlling the transmission by selecting the power transmission cable or bypass transmission cable is connected to the bypass transmission cable,
A first rotary joint mounted to the rear of the switch along the transmission cable;
A second rotary joint mounted to the rear of the first rotary joint along the transmission cable;
A first measuring system mounted to the front of the first rotary joint to measure electric power;
A second measurement system mounted between the first rotation joint and the second rotation joint to measure power;
The bypass transmission cable is an emergency power transmission device of the wind turbine, characterized in that for connecting the transmission cable in front of the switch and the second rotary joint.
제1항에 있어서,
상기 송전케이블에는 제1측정계, 스위치, 제1회전조인트, 제2측정계, 제2회전조인트의 순으로 장착되며, 우회 송전케이블의 일단은 스위치에 연결되고 우회 송전케이블의 타단은 제2측정계와 제2회전조인트 사이의 송전케이블에 연결된 것을 특징으로 하는 풍력발전기의 비상 전력송전장치.
The method of claim 1,
The transmission cable is mounted in the order of a first measuring system, a switch, a first rotation joint, a second measurement system, and a second rotation joint, one end of the bypass transmission cable is connected to the switch, and the other end of the bypass transmission cable is connected to the second measurement system and the second measurement joint. Emergency power transmission device of the wind turbine, characterized in that connected to the transmission cable between the two rotary joint.
제1항 또는 제2항에 있어서,
타워의 하단에는 변압기가 장착되며, 전력은 제2회전조인트를 통해 변압기로 송전되는 것을 특징으로 하는 풍력발전기의 비상 전력송전장치.
The method according to claim 1 or 2,
The bottom of the tower is equipped with a transformer, the power is emergency power transmission device of the wind turbine, characterized in that the power is transmitted to the transformer through the second rotary joint.
너셀을 지지하는 타워의 내부로 연장된 송전케이블에 설치되어 송전케이블의 꼬임을 방지하며 전력을 우회하여 송전할 수 있는 풍력발전기의 비상 전력송전장치로서,
너셀에서 타워 내부로 연장된 송전케이블;
상기 송전케이블에 장착되어 전력의 전송 선로를 제어할 수 있는 스위치;
상기 송전케이블을 따라 스위치의 후방에 장착된 제1회전조인트;
상기 송전케이블을 따라 제1회전조인트의 후방에 장착된 제2회전조인트;
제1회전조인트와 제2회전조인트 사이에 스위치로부터 연결되는 우회 송전케이블을 포함하는 것을 특징으로 하는 풍력발전기의 비상 전력송전장치.
As an emergency power transmission device of a wind power generator that is installed on a transmission cable extending into a tower supporting a nussel and prevents twisting of the transmission cable and transmits power by bypassing power,
Transmission cable extending from the nussel to the tower;
A switch mounted to the power transmission cable to control a power transmission line;
A first rotary joint mounted to the rear of the switch along the transmission cable;
A second rotary joint mounted to the rear of the first rotary joint along the power transmission cable;
Emergency power transmission device of the wind turbine, characterized in that it comprises a bypass transmission cable connected from the switch between the first rotary joint and the second rotary joint.
제4항에 있어서,
상기 스위치 전방에 장착되는 제1측정계;
제1회전조인트와 제2회전조인트 사이에 장착되는 제2측정계;
를 포함하는 것을 특징으로 하는 풍력발전기의 비상 전력송전장치.
5. The method of claim 4,
A first measuring system mounted to the front of the switch;
A second measuring system mounted between the first rotary joint and the second rotary joint;
Emergency power transmission device of the wind turbine comprising a.
제4항 또는 제5항에 있어서,
풍력타워 하단에 위치하여 상기 제2회전조인트와 연결되는 변압기를 포함하는 것을 특징으로 하는 풍력발전기의 비상 전력송전장치.The method according to claim 4 or 5,
Emergency power transmission apparatus of the wind turbine, characterized in that it comprises a transformer located at the bottom of the wind tower and connected to the second rotary joint.
KR1020110121330A 2011-11-21 2011-11-21 Wind generator emergency power transmission apparatus KR20130055742A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220117657A (en) 2021-02-17 2022-08-24 한국철도기술연구원 Wireless Power Transmitting And Receiving Apparatus for Wind Generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220117657A (en) 2021-02-17 2022-08-24 한국철도기술연구원 Wireless Power Transmitting And Receiving Apparatus for Wind Generator

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